401675387 has 8 divisors (see below), whose sum is σ = 403848192. Its totient is φ = 399508200.

The previous prime is 401675359. The next prime is 401675399. The reversal of 401675387 is 783576104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-401675387 is a prime.

It is a super-2 number, since 2×401675387² = 322686233043199538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401675327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246068 + ... + 247694.

It is an arithmetic number, because the mean of its divisors is an integer number (50481024).

Almost surely, 2^401675387 is an apocalyptic number.

401675387 is a deficient number, since it is larger than the sum of its proper divisors (2172805).

401675387 is a wasteful number, since it uses less digits than its factorization.

401675387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2809.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 401675387 is about 20041.8409084595. The cubic root of 401675387 is about 737.8335632537.

It can be divided in two parts, 40167 and 5387, that added together give a palindrome (45554).

The spelling of 401675387 in words is "four hundred one million, six hundred seventy-five thousand, three hundred eighty-seven".